NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Cassidy Dianne Collier, M.S., CF-SLP

Speech-Language Pathologist in Canton, IL · enumerated 2022.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1447974753

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Cassidy Dianne Collier
Credential M.S., CF-SLP
Sex Female
Practice address Canton, IL, 61520
Enumeration date Sep 29, 2022
Last updated in NPPES Sep 29, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 1218469 (IL) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Cassidy Collier practice?
The practice location on file with NPPES is in Canton, IL. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Cassidy Collier?
The National Provider Identifier (NPI) for Cassidy Collier is 1447974753, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-29.